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151Eu Mössbauer spectroscopic and XRD study on some fluorite-type solid solution systems, EuyM1−yO2−y/2 (M=Zr, Hf, Ce)

  • N. M. Masaki
  • H. Otobe
  • A. Nakamura
  • N. R. D. Guillermo
  • Y. Izumiyama
  • D. Harada
  • Y. Hinatsu
Conference paper

Abstract

151Eu Mössbauer spectroscopy and powder x-ray diffractometry (XRD) have been applied to elucidate the local structure around the trivalent europium (Eu3+) in the titled three defect-fluorite systems. From this study, it has been clarified that in contrast to Eu-Ce system the stabilized cubic-fluorite phase in Eu-Zr and Eu-Hf systems has most likely a pyrochlore-type local structure (microdomain structure).

Keywords

Isomer Shift Pyrochlore Phase Mossbauer Spectrum Japan Atomic Energy Research Institute Microdomain Structure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 2002

Authors and Affiliations

  • N. M. Masaki
    • 1
  • H. Otobe
    • 1
  • A. Nakamura
    • 1
  • N. R. D. Guillermo
    • 2
  • Y. Izumiyama
    • 3
  • D. Harada
    • 3
  • Y. Hinatsu
    • 3
  1. 1.Department of Materials ScienceJapan Atomic Energy Research InstituteTokai-muraJapan
  2. 2.Philippine Nuclear Research InstituteQuezon cityPhilippine
  3. 3.Department of ChemistryHokkaido UniversitySapporoJapan

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